Granted Patent
Utility
US 6,085,038 · App. 09/246,954
Operation apparatus for water proof device
Inventor:
Kazuharu Kobayashi
Patented Case
View Patent ↗
Granted: Jul 4, 2000
Filed: Feb 9, 1999
Inventor
Kazuharu Kobayashi
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.